William painter



Patented Nov. 29, I898.

W. PAINTER.

UNITED STATES PATENT FFICE.

IVILLIAM PAINTER, OF BALTIMORE, MARYLAND, ASSIGNOR TO THE OROlVN CORK AND SEAL COMPANY, OF SAME PLACE.

BOTTLE-CLOSURE.

SPECIFICATION forming part of Letters Patent No. 615,099, dated November 29, 1898.

Application filed July 2 9, 1 89 B To all whom, it may concern.-

Be it known that I, WILLIAM PAINTER,a citizen of the United States,residing at Baltimore, Maryland,have invented certain new and useful Improvements in Bottle-Closures,of which the following is a specification.-

The object of this invention is to provide for sealing ordinary smooth-mouthed bottles, in substitution for the ordinary cork, by means of a hollow metallic cup-shaped closure.

Hitherto bottles have been scaled by such hollow metallic cup-shaped closures by introducing therewith an annular compressible sealing material surrounding the closure and occupying a groove or recess formed in the inside of the bottle-mouth, the closure being peripherally expanded, thus forcing the annular sealing material into the said groove. Attempts have also been made to seal bottles by means of such hollow metallic closures by expanding them into direct contact with the smooth wall of the ordinary ungrooved or unrecessed bottle-mouth.

In the sealing, by hollow metallic closures, of bottles having a recess or groove formed in the interior of the mouth for the reception of a compressible sealing medium this sealing medium is compressed by expanding the metallic closure against the sealing medium.

In my present invention I seal smooth ungrooved or unrecessed bottle-mouths by a thin ductile cup-shaped metallic closure having bulged or globular walls. I procure the necessary compression of the bulged or globular walls of the closure by so proportioning the said closure that it will itself become compressed by the single act of forcibly introducing it, with or without a surrounding sealing medium, into the bottle-mouth. To unseal the bottle, the closure is pried out by any sharp-pointed instrument.

In the drawings, Figure 1 shows my improved form of closure in elevation. Fig. 2 shows the closure just before its insertion in the bottle-mouth. Fig. 3 shows the closure as inserted in a bottle-mouth. Fig. 4 is a modified form of the closure and the plunger for inserting it.

In Fig. 1 is shown a thin hollow cup-shaped metallic closure having globular sides and a flat bottom. This is adapted to be inserted Serial No. 687.209. (N0 model.)

in the bottle-mouth, as shown in Fig.3, while Fig. 2 shows the closure just previous to its insertion. The bottle-neck B has a cylindrical throat, and the closure is sufficiently compressible so as to be capable of being forced into position by the plunger D. The closure is shown in Fig. 2 at A.

In Fig. 4, A is a modified form of closure in which its spherical form is extended to include the bottom and the plunger D made to conform thereto at its end. One of the purposes of giving this spherical form to the closure is to avoid crimping or buckling its upper edge in compressing it. The plunger D, measurably filling the opening in the top of the closure, also contributes to prevent the crimping or buckling of the upper edge.

For many purposes the closure will make a gas-tight joint by direct contact of the metal with the bottle-mouth. WVhere desirable, however, its side walls may be surrounded by any suitable compressible sealing-film, as indicated by C, or where the metal of the closure requires to be protected from the contents of the bottle a protectingfilm may be used, covering the bottom of the closure.

I claim- 1. In combination with a bottle having a smooth ungrooved or unrecessed throat, a

thin, hollow, cup-shaped, ductile, metallic closure, having its sides of a bulged or spherical shape'of larger diameter than the interior of the bottle-throat, whereby, by the forcible introduction of said closure a gastight joint will be formed between the metal of the closure and bottle-throat, and sufficient frictional resistance be obtained thereby to prevent expulsion of the closure by internal pressure in the bottle.

2. In combination with a bottle having a smooth un'grooved or unrecessed throat, a thin, hollow, cup -shaped,' ductile, metallic closure, provided with a compressible sealing-film and having its sides of a bulged or spherical shape of larger diameter, as surrounded by said sealing-film, than the interior of the bottle-throat, whereby, by the forcible introduction of said closure, said sealing-film too will be compressed to make a gas-tight joint, and sufficient frictional resistance be obtained thereby to "prevent expulsion of the I will be formed between the metal of the 010- closure by internal pressure in the bottle. sure and the bottle-throat, and said closure 3. In combination with a bottle having a be protected by said film from contact with smooth ungrooved or uurecessed throat, a the contents of the bottle. 5 thin, hollow, cup-shaped, ductile, metallic In testimony whereof I affix my signature [5 closure, provided with a protecting-film and in presence of two Witnesses.

having its sides of a bulged or spherical \VILLIAM PAINTER. shape, of larger diameter than the interior of Vitnesses: the bottle-throat, whereby, by the forcible JOHN T. HAWKINS,

10 introduction of said closure, a gas-tight joint V. H. VHEELER. 

